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October 31st, 2008, 01:25 AM
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Join Date: Nov 2007
Posts: 30
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RZR 810cc big bore kit
Has anyone tried the trinity racing 810cc big bore kit? What kind of power does it put down and how reliable is it. It is like 1/4 the price of the turbo systems...
Trinity Racing
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October 31st, 2008, 09:49 AM
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Location: Kansas
Join Date: Apr 2008
Location: Kansas
Posts: 77
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Re: RZR 810cc big bore kit
Don't see what your looking at on trinity's website... this just a topend kit?
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October 31st, 2008, 09:50 AM
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Location: Kansas
Join Date: Apr 2008
Location: Kansas
Posts: 77
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Re: RZR 810cc big bore kit
n/m found it.
Here's a direct link to it. I would think a stroker kit if one ever comes out would be better.... just my .02 cents.
- Trinity Racing -
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October 31st, 2008, 11:08 AM
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First Name: John
My RZR: 2008 Murdered Out RZR
Location: Sacramento, CA
Join Date: Apr 2007
Location: Sacramento, CA
Posts: 522
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Re: RZR 810cc big bore kit
Whats the difference?
__________________
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October 31st, 2008, 04:20 PM
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First Name: Cory
My RZR: Green RZR800EFI
Location: Minnesota
Join Date: Apr 2008
Location: Minnesota
Posts: 52
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Re: RZR 810cc big bore kit
This increases displacment via larger cylinder bore. A stroker kit increases the length of the crankshaft stroke, thus increasing displacment. The stroker kits tend to have a better mechanical advantage (i.e. read longer lever arm) and develop more torque then the same displacment engine utilizing just an enlarged bore. There is a lot more that plays into make good usable power including bore/stroke ratio, cylinder filling properties, cam timing, head flow, etc... Either way, this would be a nice addition, but I would team it up with a stroker crank/rods and do head work if it was me.
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October 31st, 2008, 06:02 PM
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My RZR: the green one
Location: freesoil mi.
Join Date: Jun 2008
Location: freesoil mi.
Posts: 139
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Re: RZR 810cc big bore kit
Quote:
Originally Posted by RZR Therapy
This increases displacment via larger cylinder bore. A stroker kit increases the length of the crankshaft stroke, thus increasing displacment. The stroker kits tend to have a better mechanical advantage (i.e. read longer lever arm) and develop more torque then the same displacment engine utilizing just an enlarged bore. There is a lot more that plays into make good usable power including bore/stroke ratio, cylinder filling properties, cam timing, head flow, etc... Either way, this would be a nice addition, but I would team it up with a stroker crank/rods and do head work if it was me.
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all true and while were at it get a crank with 180 deg. pins, eliminate the bal. shaft, build in a distributer and kick some big time butt. expensive, but doable.
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October 31st, 2008, 08:33 PM
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Join Date: Sep 2008
Posts: 4
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Re: RZR 810cc big bore kit
So, what are you going to do about the stock rod with no middle bearing?
ALBA Performance Research & Development
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November 1st, 2008, 06:20 AM
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My RZR: the green one
Location: freesoil mi.
Join Date: Jun 2008
Location: freesoil mi.
Posts: 139
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Re: RZR 810cc big bore kit
Quote:
Originally Posted by jb3231
So, what are you going to do about the stock rod with no middle bearing?
who knows, it's just a thought now, but if it happens, MOLDEX will do the crank out of steel billet, and we'll go from there. it might not be feasable to do , due to the deminsional limitations of the crankcase and cyl., will know when the engine is out and apart this winter.
ALBA Performance Research & Development |
Last edited by stroker0836; November 1st, 2008 at 06:26 AM.
Reason: wrong word
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November 12th, 2008, 11:32 PM
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My RZR: 2008 Red
Location: woodland,ca
Join Date: Feb 2008
Location: woodland,ca
Posts: 338
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Re: RZR 810cc big bore kit
Quote:
Originally Posted by KEVIN@LASER
Has anyone tried the trinity racing 810cc big bore kit? What kind of power does it put down and how reliable is it. It is like 1/4 the price of the turbo systems...
Trinity Racing |
Any idea what is a HP gain with this big bore kit ?
milos
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04 raptor 660
06 raptor 700
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November 16th, 2008, 09:18 PM
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Join Date: Mar 2008
Posts: 59
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Re: RZR 810cc big bore kit
im interested in this also, i just put on the trinity full exhaust and efi controller and its awesome.....
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November 17th, 2008, 07:11 AM
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My RZR: "s" sh$t ya!
Location: fountain hills, az
Join Date: Aug 2008
Location: fountain hills, az
Posts: 209
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Re: RZR 810cc big bore kit
Quote:
Originally Posted by ZTPerformance13
im interested in this also, i just put on the trinity full exhaust and efi controller and its awesome.....
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did u get lots more power?
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November 18th, 2008, 11:42 PM
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Join Date: Mar 2008
Posts: 59
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Re: RZR 810cc big bore kit
its a pretty noticeable difference...haven't got it in the woods yet though...just in a field. I also gained 5mph on top speed (according to my speedo...)
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